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Finding the Fourth Proportional to 2,988.93, 4,483.65 and 1,345.65

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Solution

The fourth proportional to 2,988.93, 4,483.65 and 1,345.65 is: 2,018.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.93 : 4,483.65 = 1,345.65 : x
  2. Step 2: Convert to fraction form
    2,988.93/4,483.65 = 1,345.65/x
  3. Step 3: Cross multiply
    2,988.93x = 4,483.65 × 1,345.65
  4. Step 4: Simplify right side
    2,988.93x = 6,033,411.85
  5. Step 5: Solve for x
    x = 6,033,411.85/2,988.93
  6. Step 6: Final answer
    x = 2,018.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.